Скачать или смотреть Everything You Need To Know About THC, Marijuana's Mind Altering Chemical | Mach | NBC News

It’s 4/20 - the unofficial high holiday. The pleasant euphoria people feel when they smoke marijuana is all because of the main chemical produced in the cannabis plant: delta-9-tetrahydrocannabinol...or THC.
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Everything You Need To Know About THC, Marijuana's Mind Altering Chemical | Mach | NBC News